Wedge for a drill shank of a percussion drilling machine



FIG. 1 is a perspective side and end view of a wedge for a drill shank of a percussion drilling machine showing our new design;

FIG. 2 is a perspective top and end view thereof;

FIG. 3 is a side view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is an end view thereof. 

The ornamental design for a wedge for a drill shank of a percussion drilling machine, as shown and described. 